Melt the bacon fat in a big pan. Brown the wings in the bacon fat. We’re doubling down on the meatiness here.
Add the onions and carrots. Saute with the wings until the onions are translucent
Add the garlic and bay leaves, sautee briefly but do not burn the garlic
Add the tomatoes, Mash them with a potato masher. Cook down slowly. Add a little water to keep it from drying out if you need to.
Remove from heat. Let cool a bit. Remove chicken wing tips when you can do it without burning yourself.
Heat again. Add chicken stock, 12oz or so of the beer (I’ll let you figure out what to do with the rest) and a couple dashes of fish sauce.
Use immersion blender to smooth the sauce
Cook down a bit longer. Add white pepper, coriander, salt, piri piri sauce, and whiskey. Let it evaporate for a few minutes
Whisk corn starch into milk until smooth. While stirring, add the mixture to the pot.
Simmer until desired thickness is reached.